Heat-distributing system.



No.'89'l,855. I PATE'NTED JUNE 30, I908 I W. H. PBARGE.

HEAT DISTRIBUTING SYSTEM.

APPLIGATIOH 1 1mm 8 .1 1906.

HT a SHEETS-SHEET 1.

ajqo No. 891,855. PATENTED JUNE 30, 1908.

W. H. PEARCE. HEAT DISTRIBUTING SYSTEM.

APPLICATION FILED E T. 19,1906.

S P 3SHEETSSHEET.Z.

. \Y LP ..1 R v PATENTED JUNE 30,

W. H. PEARCE. AT DISTRIBUTING SYSTEM. APPLICATION FILED SEPT..19, 1906.

3 SHEETS-SHEET 3.

uiyrrnn srarns Parana orrron WILLIAM H. PEARCE, OF CHICAGO, ILLINOIS.

HEAT-DISTRIBUTING- SYSTEM.

To ZzZlfiuhom it may concern:

Be it known that I, VILLIAM H. PEARCE, a citizen of the United States, residing at Chica 0, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Heat-Distributing Systems, of which the following is a full, clear, and exact specification. 4

This invention relates to improvements in heat distributing systems, and more ar-, tlcularly to that class of systems in w ich l the heating medium is delivered to the diiferent points of use from a central generating lant or station through pipes or conduits coated beneath the surface of the ground.

The object of the same is to provide an im roved arrangement of the ipes' or conduits which willbe compact, t iereby necessitating a minimum amount of space, and at the same time to provide an improved means for protecting the pipes.

A further object is to provide an improved protecting covering spaced from the pi e or conduit which conveys the heating me ium, and which will be so arranged as to completely surround the pipe.

- A further object is to provide improved means for anchoring the pipe or conduit, and at the same time allow the pipe or conduit, together with its covering or casing, to exand and contract.

A further object is to provide an improved system which will be simple and cheap to construct or install, and efficient in operation.

To the attainment of these ends, and the accomplishment of other new and useful objects, as will appear, the invention consists in the features of novelty in the-con struction, combination and arrangement of the seweral features hereinafter more fully described and claimed and shown in the accompanying drawings illustrating the. embodiment of this invention, and in which,

Figure'l is a transverse sectional view of a systemconstructed in accordance with the principles of this invention; Fig. 2 is an elevation of a portion of a system similar to that shown in Fig. 1, and illustrating the manner of anchoring the pipe or conduit; Fig. 3 is a detail sectional view of the casing for the return pipe showing the means fr support' ing the pipe intermedlate its couplings, and with the pipe and coupling in elevation; Fig. 1 is a top plan view of a section of a system showing a slightly different arrangement;

Specification of Letters Patent.

Application filed September 19, 1906.

Patented June 30, 1908..

Serial No. 335,220.

Fig. 5 is a detail sectional view of a portion of a ventilated covering or casing; Fig. 6 is a l'sectional View on line 66 of Fig.1; Fig. 7 is a sectional view on line 77 of Fig. 1'; Fig. 8 is a transverse sectional view through the couplings; Fig. 9 is a bottom plan view of the supplemental pipes and couplings; Fig; 10 is a detail sectional view of the manner of connecting the sections of the casing.

Referring to thedrawings, the same reference character designate similar parts throughout the several views.

In installing an improved system of this character, as exemplified by Fig. 1 of the drawings, a suitable drain tile 10 is placedin the bottom of an ordinary trench or ditch, and covered in the usualmanner. -A casing 11 is then provided above the drain tile which is adapted to. receive the system return pipe 12. This casing is preferably open. at the top, and may be constructed of-any suitable material, and many desired manner, either by molding the same directly within the ditch in the wellknown manner, or by constructing the same of sections formed in the shape of tiles, and assembled.

Suitable ribs or projections 13 may be providedat intervals intermediate its length, of a suflicient height to form a support for the pipe 12,. intermediate its couplings 14, asmore clearly shown in Fig. 30f the drawing. The internal diameter of this casing 11 is of such a size as to receive and completely house the pipe 12.

Suitable tiles 15 adapted-to receive con ductor or other wires are arranged on each side of, the casing 11, and the tops of these tiles 15 are preferably arrranged so as to be flush housing 11, to form an even surface upon which a base or support 16 rests. This base or support may be formed in any desired manner and of any thickness, either by constructing-the same of plastic material within the trench, or in the form of tiles suitably assembled, andis preferably of a width to project beyond the sides of the conductorwire tiles 15. A suitable depressed or concaved portion 17 is provided in the upper face of the base or support 16 and shoulders 18 are provided adjacent the sides of said depressed portion, which latter project slightly above the upper face 19 thereof. A plate 20 of any suitable material, such as metal or the like, is placed upon the base or with the top of the sides of the casing or support 16, within the concaved or depressed portion 17, and is of a Width less than the width of the said portion 17.

A cover is provided for the plate 20, which is composed of any suitable fibrous material 21 such as wool, felt, or the like, and secured to one face thereof is a strip of metal 22, such as tin or the like. If desired, a suitable fireproof material 23, such as asbestos or the like, may be interposed between the material 21 and the metal 22. The fibrous covering 21 is of a width greater than the width of the plate 20 and less than the width of the concaved or depressed portion 17, and is placed over the ,plate 20 with the fibrous material adjacent the plate, and is compressed so that the portion of the material beyond the sides of the plate will contact with and rest upon the bottom of the concaved or depressed portion 17 of the base or support 16, as will be understood.

The material 21 and the metal 22 are provided with a plurality of'registering apertures 24, suitably spaced from each other and are of a length less than the width of the plate 20.

Suitable rollers 25 may be placed Within the apertures 24, so as to rest upon the plate 24, of a size to move freely in the apertures and project above the top of the plate or cover 22. A pipe or main 26 of any desired size, and preferably covered with a. suitable fireproof material 27, such as asbestos or thelike, is placed upon and supported by the rollers 25, which latter form bearings for the pipe or main when moving during contraction and expansion.

A suitable casing is provided for the pipe or main 26, which is constructed of a suitable fibrous material 28, and preferably'pro vided with a water roof outer face 29, of any suitable materia such as tar the like, and secured to the other face is a metal late 30, such as tin or the like. If desired a suitable fire roof material 31, such as asbestos or the ike, may be interposed between the adjacent faces of the ffibro us material 28, and the metal 30, in

order to protect the fibrous material from the heat of the metal. This casing may be constructed in flat form, and, when desired for use, bent or bowed into arch-shape, as shown, and placed over the pi e in sucha position that its extremities wi rest within the concaved or depressed portion 17 of the base or support, and between the edges of the material 21, and the edges of the portion 17 and shoulders 18, in such a manner that the casing formed thereby will be spaced from the main or pipe 26.

'A suitable wall 32 may be provided for covering or mclosmg' the casing," and said wall is supported by the face 19 of the base or support 16, and is arched over the outer face of the casing, and in contact therewith.

aper. or

The wall or arch 32 is so constructed and arranged that its outer face substantially forms a continuation of or isfiush with the outer edges of the base or support 16, and a suitable waterproof coverin 34, such as asphaltum, or the like, is p aced over the outer edges thereof, to prevent water or moisture percolating therethrough and cone tacting with the casing around the pipe or mam 26.- Obviously, the arch 32 may be constructed in sections, and if so constructed the sections may be providedwith overlapping ortions 3536 to form a joint, as shownin l ig. 7.

The casing which covers the pipe 26 may also be of sectional construction, and if so the ends thereof may be placed together, as shown in Fig. 7, and the tar pa er or cover ing 29 of one section may over ap the adjacent end of the next'section, from which the paper or covering has been omitted, and thus suitably secured, as will be understood. v 1 If desired, the fibrous material 28 forming the pipe casing may be constructed in the form of a ventilated casing, a section of which is shown in .Fig. 5. Suitable couplings 37 may be provided throughout the length of the system, which rest upon a suitable support 38, which latter is secured to a base 39 by any suitable means, such as bolts 40, or the like, passing through the support 38 and engaging anchor bars 41 embedded in the base 39.

The couplings 37 are secured to the supports 38 in any suitable manner, such as by means of bands or ears 42 on the coupling,

plates or and tie bolts or rods 43 engaging the same,

and the support 38. The supports are preferably of such a height as to permit the return pipe 12 to pass through the support between the base 39 and the coupling 37-. The support is provided with an aperture or cutout ortion 44 to permit a branchpipe 44 to lib secured to the opening 45 of the return pipe, and the coupling 37 may also be provided with a top opening 46 to accommodate 'a branch pipe 46, more clearly shown-in Fig. 8. A suitable manhole" or housing, designated generally. by the numeral 47, is supported by the base 39, within which housing the couplings 37 stand.

The fibrous casing, and the wall 32 which surround the ipe 26, and the casing or housing 11 of t 1e pipe 12, terminate short of the couplings 37, and project through the Fig. 2, and interposed between the edge ofthe opening, through which they pass and the wall or arch 32 is a suitable waterproof protector 48 of any suitable material, such as paper or the like. This protector revents the end of the casing and the. wa. of the aperture. in the manhole from sticking together and permits the movement of the arts with relation to. the wall of the man ole, which movement is due to contraction and expansion, and at the same time prevents water or moisture from passing through the opening, around thew all or arch 32, and contacting with the pipe 26, If desired, and as will be understood, a suitable valve 49 may be provided in the coupling.

In the arrangement shown in Fig. 4, the sections 26 constituting the supply pipe or conduit, are arranged out of alinement and are connected by the ordinary elbow joint which latter may, if desired, be provided with a coverirn 51 of asbestos or any other suitable material applied in a plastic form. These joints or couplings are incased in a suitable housing designated generally by the numeral 32, into which the ends of the covering 28 extend, in. a manner similar to that shown by the arrangement in Fig. 2, and any suitable anchors may also be provided for anchoring the sections of the pipe or main 26, interme diate their length.

When it is desired, suitable air pipes 53 may be placed within the casing which surrounds the pipe or main 26, and may be used for drawing the air from the system, bent as shown in Fig. 8, so as to pass around the coupling-member 37. With such an arrangement, the heat which is radiated from the pipe or main 26 will be'confined within the space between the pipe and the metal facing of the fibrous casing, which facing will direct the heat back against the pipe, thereby tending to maintain the heating medium at a high temperature; the fireproof material or asbestos 31 being provided between the metal facing 30 and the fibrous material 28, in order to prevent the heat of the metal from setting ployed without loss of space.

fire to the fibrous-material. It will thus be seen that the pipes are not only securely anchored, which does not interfere with their contraction and expansion, but that they are so arranged as to produce such a compact system that the cost of installation is greatly reduced. The casing being so constructed and provided with a flat or straight side, a pipe or main of considerable size may be em- Furthermore, the supply and return pipes are so protected that moisture cannot come in contact therewith from the outside, but the moisture entering the ground will pass around the pipes and find its way to the drain tile.

In the exemplification of the invention shown in Fig. 8, the tiles 15 are dispensed with and suitable water pipes 5252 may be employed. These pipes are arranged close to the return pipe 12 and are provided with couplings 5455, arranged adjacent the couplings 3745, and within the manhole 47 These couplings rest upon suitablesupports 56, and are preferably anchored to the walls of the manhole 4 7, or any other support, by

means of bolts 57. These couplings are provided with a depending portion or chamber 58, one on each, and located adjacent the opposite ends of they respective couplings. Pipes 59 are connected to and communicate with the portion 58 of the coupling 54, and extending beyond both sides of the pipe 52, one of said pi es 59 crossing beneath the coupling 55. imilar pipes 60 connect with the portion 58 of the coupling 55, and extend in a parallel direction with the pipes 59, one of which crosses beneath the coupling 54. Thus it willbe seen that either one of these pipes 5252 together with its respective branch pipe, may be used as a supply or return pipe, as desired.

Water of condensation from the service pipes 264 6 will accumulate in the bottom 61 of the coupling members 37, and leading from this portion 61 is a suitable pipe 62, which communicates with a chamber or receptacle 63, which in turn communicates with the return pipe 44 by means of the. connecting pipe 64 and the coupling 65. A suitable sight glass 66 may be provided for the chamber or receptacle 63, and if desired a valve- 67 may be provided in the pipe 62. Thus it will be seen that when the valve 67 is opened the water of condensation accumulated in the portion 61 of the coupling member 37 will pass out through the pipe 62, and

chamber 63, and into the pipe 44. This portion 61 of the coupling member 37 may be tapped on each side to permit the chamber 63 to be connected on either side, or an additional chamber to be used, and when only one chamber is used the unused opening may be closed with an ordinary plug 68, as will be understood.

In order that the invention might be fully understood, the details of an embodiment thereof have been thus specifically described,

but

What I claim is 1. In a heat distributing system, the combination of a base, a supply pipe supported thereby, a return pipe disposed beneath the base and in proximity to the supply pipe, and a. casing for each of the pipes, each of said casings being provided with an open side disposed adjacent each other and said pipes being disposed between and serving to close I both of the casings.

2. Ina heat distributing system, the com bination of a base, rollers mounted upon the base, means for preventing displacement of said casings being provided with an open side and said open sides being disposed adjacent which said pipe each other, said base being disposed between and serving to close both of the casings.

3. In a heat distributing system, the combination of a base, a supply pipesupported .by the base, a return pipe disposed on the opposite side of the base and in proximity to the supply pipe, and a casing for each of the pipes, each of said casings being provided with an open side, said open sides being disposed ad ace'nt each other, said base being disposed between and adapted to close the casings, the casing surrounding the return' pipe being provided with spaced ribs or pro- Jections throughout its length and upon rests. i 4. In a heat distributing system, the combination of a pipe, housings for the anchors, a casing for thepipe'comprising a body (portion of fibrous eflecting surface and a fireproof materialinterposed between the body portion and the metallic surface,

the extremities of said casing projecting loosely through the wall of the housing and terminating short of the anchors to permit expansion andcontraction thereof, and areturn pipe for the system.

5. In a heat distributihg system, the com bination of a supply pipe, anchors for sai pipe, housings'for the anchors; a casing for the pipe comprising a-body portion of fibrous material, a metallic heat deflecting surface and a fireproof material interposed between the body portion and the metallic surface, the extremities of said casing projecting loosely through the wall of the housing and terminating short of the anchors to permit expansion and contraction thereof, a packing interposed between the casing and the edge of the opening in the wall through which the casing passes, and a return pipe for the system.

6. In a heat distributing system,the combination of a supply pipe, a casing for said pipe comprising a body portion of fibrous material, a metallic heat deflecting surface and a fireproof material interposed between the body portion and the metallic surface, an independent protecting covering for the casing, an anchor for the pipe, a housing for the anchor, the extremities of said casing and protecting cover extending into the housing through the walls thereof, and terminating short of the anchor to permit contraction and expansion of the casing, and a return pipe for the system.

7. In a heat distributing system, the ('o1ubination of a supply pipe, a casing for said pipe comprising a body portion of fibrous supply pipe, anchors for said cover and the edge of the opening in the wall through which the cover passes, and a return pipe for the system.

8. In a heat distributing system, the combination of a base'provided with a depressed portion in its upper face, a heat deflector disposed in the depressed portion, a supply pipe supported above the deflector, a casing for the pi e comprising a flexible member arched over t e pipe with its extremities resting in the depressed portion of the base, a heatdeflector secured to the face of the casing adjacent the ipe, a return pipe disposed beneath the said return moisture.

9. In a heat distributing system, the combination ofa b'ase provided with a depressed portion in its upper face, rollers in said depressed portion, a heat deflector also within the depressed portion surrounding the rollers and terminating short of the walls of the depression, a supply ipe su ported by the rollers, a casing for t ing a flexible material having a heat de ecting surface and arched over the pipe with its extremities standing within the depressed portion between the walls thereof and the edges of the heat deflector therein, a return pipedisposed below the base, and means for protecting said pipe and easing from external moisture 10. In a heat distributing system, the combination of a base provided with a depressed portion in its upper face, rollers in said depressed portion, a heat deflector also within the de ressed ortion surrounding the rollers and terminating short of the walls I of the de ression, a sup ly pipe supported by the rollers, a casing or the supply pipe comprising a flexible material having a heat deflecting surface and arched over the pipe with its extremities standing within the depressed portion between the walls thereof and the edges of the heat deflector therein, whereby said casing will be closed b r the base, a return pipe disposed below the base, a casing for the return pipe also closed by the base, and a protecting cover for the casing of the supply also supported by the base and I closed thereby.

H. In a heat distributing system, the combinationgof a base provided with a de pressed portion in its uppenface, a'casing pipe and easing from external ase, and means for protecting e supp y pipe com rissupported by the base comprising two sections eachof which comprises a body portion of fibrous material and a metallic heat deflecting surface, the bottom section of the casing being disposed within the depressed portion of the base with the deflecting surface uppermost, said section being provided .with apertures, rollers in the apertures, a

supply pipe supported by the rollers, the top portion of the casing comprising a flexible body portion composed of fibrous material and a heat deflecting surface, said upper portion being bowed over the pipe with its ex tremities'standing between the edges of the bottom portion and the sides ofthe depressed portion, andla return pipe for the system.

12. i In a heat distributing system, the combination of a supply ipe, an anchor for the pipe, a housing for t e anchor, a casing for the pipe comprising a body portion of fibrous material, a metallic heat deflecting surface, and a fireproof material interposed between the body portion and the metallic surface, the extremities of said casing projectin loosely through the wall of the housing and terminatin short of the anchor.

13. In a eat distributing system, the com bination of a supply pipe, a casing for said pipe comprising a body portion of fibrous material, a heat deflecting surface and a fire roof material disposed'between the body ant the said surface, an independent protecting covering for the casing, an anchor for .portion in its 11 with its extremities resting in thedepressiedportion of the base, and a heat. deflector secured to the face of the'casing adjacent the 1 e. 15. In a heat distributin system, the combination of a baseprovided with a depressed 1n the depresse portion and provided with a heat deflecting surface, supports resting upon the base and projecting through the said member, a pipe resting upon the supports adjacent the deflector, a casing for the pi e comprising a flexible member arched over t e pipe with its extremities resting in the depressed portion above the base, and -a heat deflector secured to the face of the casing adjacent the ipe.

16. In 'alieat distributin system, the combination of a base provided portion in its upper face, a member dlsposed per face, a member (hSPOSGd with a depressed in the depressed portion and provided with a heat deflecting surface,- a pipe supported adjacent the member, a casing or the pipe com prising a flexible member arched over the pipe with its extremities resting in the depressed portion of the base, a heat deflector secured to the face of the casing adjacent the pipe, and a covering for the casing.

17. In a heat distributing system, the combination of a base provided with a depressed ortion in its u per face, a member disposed in the depresse portion and provided with a heat deflecting surface, supports resting up on the base and projecting throu h the said member, a pipe resting upon t e supports adjacent the eflector surface, a casing for the pipe comprising a flexible member arched over t e pipe with its extremities resting in the depressed portion above the base, a heat deflector secured to the face of the casing adjacent the pipe, and a separate covering for the casing.

18. In a heat distributing system, the combination of a supply pipe, acasingfor the pipe comprising a body portion of fibrous material surrounding the pipe, means for supporting the pipe out of contact with the I casing, the outer face of the casing being water-proofed, and a reinforced plastic covering engaging and surrounding the said casm 19. In aheat distributing system, the combination of a supply pipe, a casing for the pipe comprising a body portion of fibrous material having a heat deflecting surface, said casing surrounding the pipe with the heat deflecting surface adjacent the pipe, means for supporting the pipe out of contact with the casing, the outer face of the casing being water-proofed and a reinforced plastic covering engaging and surrounding the said casing. 20. In a heat distributing system, the com bination of a supply pipe, a casin for the pipe corn rising a body portion 0 fibrous material aving a heat deflecting surface, said casing surrounding the pipe with the heat deflecting surface adjacent the pipe,

means for supporting the pipe out of contact with the casmg, the outer face of the casing being waterproofed, and a-re-inforced plastic covering engaging and surrounding the said casing, said covering beingalso provided with a water-proofed outer surface.

21. In a heat distributing system, the combination of a supply pipe, a sectional casing for the pipe, each section comprising a body portion of fibrous material, said casing surrounding the pipe, means for supporting the pipeout of contact with the casing, the outer surface of each section being water-proofed, and a plastic covering engaging and surrounding the said casing. V

22. In a heat distributing system, the cornbination of a supply pipe, a sectional casing 7 a for the pi e, each section comprising a body flectin surface, said casing surrounding the portion oi fibrous material, the inner face of i pipe with the heat deflecting surface adjacent each section being provided-with a heat dethe pipe, means for supporting thepipe out flecting surface, said casing surrounding'the I of contact with the casing, the outer face of 5 pipe with the heat deflecting surface adjaeach section being water-proofed, and a sec. 20 cent the pipe, means for supporting the pipe tional reinforced lastic covering engaging out of contact with the casing, the outer face and surrounding t e said casing. of each section being water-proofed, and a In testimony whereof I'lhave signed my plastic covering engaging and surrounding name to this specification, in the presence of 10 the said casing. two subscribing witnesses, on this l 7th day 5;; 23. In aheat distributing system, the comof September A. D. 1906'. a bination of a supply pipe, a sectional casing PEARCE. for the pipe, each section comprising a body i Witnesses: portion of fibrous material, the inner 'face of J. H. JooHUM, Jr., 15 each section being provided with a heat de- SEMPLE. 

